7007 ACEGA/HCP4AL1
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7007 ACEGA/HCP4AL1
Basic Information
System of measurement
Metric
Weight
0.13 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
62 mm
Outside diameter tolerance
-0.004mm to 0
Width
14 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
17
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2498 lbf
Radial static load rating
1418 lbf
Limiting speed
56 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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In Stock
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7007 ACEGA/HCP4AL1 Bearing Product Overview & Core Advantages
The 7007 ACEGA/HCP4AL1 is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered to accommodate combined loads (radial and axial loads simultaneously), this bearing features a single-row design with a 25° contact angle for optimal axial load capacity. Its P4A super-precision tolerance class and ceramic ball construction deliver superior running accuracy, reduced vibration, and enhanced operational reliability in high-speed scenarios. Pre-loaded as an Extra light / Class A bearing and supplied as a universally matchable (SU) set, it ensures simplified installation and consistent performance in precision assemblies.
7007 ACEGA/HCP4AL1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7007 | Basic bearing series, indicating a 35 mm bore diameter, 62 mm outside diameter, and 14 mm width. |
| A | Signifies a 25° contact angle, optimized for handling higher axial loads. |
| C | Designates the use of ceramic (hybrid) balls, offering benefits like reduced weight, lower friction, and extended service life. |
| EGA | Indicates specific internal design and preload level: Extra light (Class A). |
| HC | Refers to the Phenolic (resin) cage material, suitable for high-speed operation. |
| P4A | Denotes a super-precision tolerance class, ensuring extremely tight dimensional and running accuracy. |
| L1 | Specifies the bearing is lubricated from the factory. |
7007 ACEGA/HCP4AL1 Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and enables higher limiting speeds (56,000 rpm). This construction also offers improved resistance to electrical erosion.
- High-Speed Phenolic Cage: The HC (Phenolic) cage provides excellent strength-to-weight ratio, low friction, and superior guidance for the ceramic balls, contributing to smooth operation at high rotational speeds.
- Super-Precision P4A Tolerance: Manufactured to P4A tolerance class with very tight bore, outside diameter, and width tolerances, this bearing guarantees minimal runout and vibration, which is critical for high-precision spindles.
- Optimized Load Capacity: The 25° contact angle design provides a robust balance between radial and axial load ratings (2498 lbf dynamic, 1418 lbf static), making it suitable for applications with significant combined loads.
- Universal Matchability (SU): As a universally matchable bearing, it can be paired with any other SU-coded bearing in any combination to achieve the required preload or rigidity without selective mounting, simplifying inventory and assembly processes.
7007 ACEGA/HCP4AL1 Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where speed, precision, and reliability are paramount. Key application sectors include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC lathes.
- Precision Robotics: Arm joints and main drives requiring high accuracy and stiffness.
- Medical Equipment: Dental handpieces, centrifuge rotors, and imaging device scanners.
- Aerospace & Defense: Gyroscopes, navigation systems, and auxiliary power units (APUs).
- High-Frequency Motors and Spindles used in the electronics and semiconductor manufacturing industries.
